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Palindromic Date

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Palindromic Date

Old 1st Feb 2020, 21:48
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Talking Palindromic Date

Tomorrow (today for our "Transpondic* Brethren") is the first time in 900 years that a date may be written both forward and backward with exact mirroring. This, I think, is cause to consume an extra adult beverage of one's preference!

- Ed

* My New Word: Across the Pond!
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Old 1st Feb 2020, 21:59
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????? Aren't you a year early?

2/1/20 or 1/2/20 - where's the palindrome?

Next year, 1/2/21 will work on Jan. 2, over here.

Last edited by pattern_is_full; 1st Feb 2020 at 22:10.
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Old 1st Feb 2020, 22:02
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02/02/2020 is what he was after, though you probably really did know that.

02/11/20 would also work, if shorter.
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Old 1st Feb 2020, 22:05
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may be written both forward and backward with exact mirroring.
02 02 2020
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Old 1st Feb 2020, 22:09
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I never waste ink (or, being a Yank, runway paint) on initial 0s.

But, OK - the more the merrier. See everyone next year, too.
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Old 1st Feb 2020, 22:24
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Today I looked down at the mileometer of my motorcycle. It read 11111.
Now that will never happen again!
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Old 1st Feb 2020, 22:28
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I once had a palindromic date, forwards, backwards, she didn't mind.
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Old 1st Feb 2020, 22:48
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Reiwa 2 here.
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Old 1st Feb 2020, 22:57
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In case you are looking to get a headache, watch this.

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Old 2nd Feb 2020, 00:42
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Surely a date with Anna would be a palindromic date, or even her sister, Hannah.
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Old 2nd Feb 2020, 06:19
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10th Feb 2001, 10/02/2001

Not 900 years ago, 19.
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Old 2nd Feb 2020, 07:37
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In Germany (and other lands) there is always a rush by people to get hitched on such palindromic dates, as on the marriage certificate it 'looks more interesting'...... The authorities have to limit the numbers due to the extra volume of applicants. Personally I can't see the point, who looks at their marriage certificate more than once ?
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Old 2nd Feb 2020, 07:56
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Originally Posted by ceeb View Post
10th Feb 2001, 10/02/2001

Not 900 years ago, 19.
How about just 9 years ago: 11/02/2011
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Old 2nd Feb 2020, 08:12
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Originally Posted by VP959 View Post
How about just 9 years ago: 11/02/2011
21/02/2012?
is there a prize?
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Old 2nd Feb 2020, 09:52
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And even the Yanks will get it correct today 02/02/2020
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Old 2nd Feb 2020, 10:32
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Originally Posted by artee View Post
Surely a date with Anna would be a palindromic date, or even her sister, Hannah.
Not to mention their shorter cousin, Ava or, for Scots looking for a male palindrome, someone called Dod.....

Jack
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Old 2nd Feb 2020, 12:45
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No matter how hard I try, 0202 beF dn2 doesn't work for me!
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Old 2nd Feb 2020, 15:14
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Originally Posted by rjtjrt View Post
In case you are looking to get a headache, watch this.

https://youtu.be/4fE_sXZjxng
Difficult to follow but did they cover 12/02/2021?
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Old 2nd Feb 2020, 17:14
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This gentleman gives a better explanation than I could, but I'll bet I can drink more beer today than he!

- Ed

Sunday is shaping up to be a unique day for reasons other than the Super Bowl and Groundhog Day: It's also a rare palindrome.

While various forms of palindrome dates are fairly common, 02/02/2020 has the unique distinction of reading the same backward and forward when written out in eight digits in multiple date systems, according to University of Portland professor Aziz Inan.

“We are so lucky to have such a special palindrome date occurring in our lifetime because it’s so rare,” Inan told USA TODAY Saturday.

For starters, it's an eight-digit palindrome: 02022020. Many palindrome dates are only symmetrical if you write the date with seven digits (1-10-2011) — or in some cases even fewer (9-10-19).

But even more rare, according to Inan, is that Sunday's date is an international palindrome: It works whether you write the date as "Month/Day/Year" or "Day/Month/Year," as many countries do.

Inan calls such dates "ubiquitous palindromes," and there won't be another one for 101 years. After that, you'll have to wait until March 3, 3030.

According to Inan's calculations, the last such palindrome date to occur was 11/11/1111 – more than 900 years ago.

For years, Inan has been crunching numbers using a basic calculator and a pad of paper to find unique patterns in dates.

Last edited by cavuman1; 2nd Feb 2020 at 17:15. Reason: Spacing
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Old 2nd Feb 2020, 18:38
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Yes but much more importantly...
ITS GROUNDHOG DAY!
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